Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Elizabeth Blair Essner, ASW

Social Worker in Cupertino, CA · enumerated 2020.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1467078188

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Registry record

Entity type Individual (Type 1)

Name Elizabeth Blair Essner

Credential ASW

Sex Female

Practice address 19000 Homestead Rd Bldg 1, Cupertino, CA, 95014

Phone (408) 366-4200

Enumeration date Jun 18, 2020

Last updated in NPPES Jun 18, 2020

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License 83967 (CA) Primary

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Elizabeth Essner?

Elizabeth Essner is registered in NPPES with the primary taxonomy of Social Worker. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Other providers at this practice address

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Brad Koch Marriage & Family Therapist · Cupertino, CA NPI 1366683062 Anna Saeger Marriage & Family Therapist · Cupertino, CA NPI 1265740260 Martin Hanson Psychologist · Cupertino, CA NPI 1487086724 Maria Rivera Marriage & Family Therapist · Cupertino, CA NPI 1255813499 Kristi Van Pykeren Mental Health Counselor · Cupertino, CA NPI 1588149207 Martin Cadena Marriage & Family Therapist · Cupertino, CA NPI 1972146975 Freddie Vargas Marriage & Family Therapist · Cupertino, CA NPI 1043837941 Tyrone Carter Clinical Social Worker · Cupertino, CA NPI 1881544161

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-06-18.